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fn main args-on-stack: (addr array addr array byte) -> _/ebx: int {
var args/eax: (addr array addr array byte) <- copy args-on-stack
var len/ecx: int <- length args
compare len, 2
{
break-if-!=
# if single arg is 'test', run tests
var tmp/ecx: (addr addr array byte) <- index args, 1
var tmp2/eax: boolean <- string-equal? *tmp, "test"
compare tmp2, 0/false
{
break-if-=
run-tests
return 0 # TODO: get at Num-test-failures somehow
}
# if single arg is 'screen', run in full-screen mode
tmp2 <- string-equal? *tmp, "screen"
compare tmp2, 0/false
{
break-if-=
interactive
return 0
}
# if single arg is 'type', run in typewriter mode
tmp2 <- string-equal? *tmp, "type"
compare tmp2, 0/false
{
break-if-=
repl
return 0
}
# if single arg is 'test' ...
tmp2 <- string-equal? *tmp, "test2"
compare tmp2, 0/false
{
break-if-=
test
return 0
}
}
# otherwise error message
print-string-to-real-screen "usage:\n"
print-string-to-real-screen " to run tests: tile test\n"
print-string-to-real-screen " full-screen mode: tile screen\n"
print-string-to-real-screen " regular REPL: tile type\n"
return 1
}
fn interactive {
enable-screen-grid-mode
enable-keyboard-immediate-mode
var env-storage: environment
var env/esi: (addr environment) <- address env-storage
initialize-environment env
{
render env
var key/eax: grapheme <- read-key-from-real-keyboard
compare key, 0x11/ctrl-q
break-if-=
process env, key
loop
}
enable-keyboard-type-mode
enable-screen-type-mode
}
fn test {
var env-storage: environment
var env/esi: (addr environment) <- address env-storage
initialize-environment-with-fake-screen env, 0x20, 0xa0
render env
}
fn process-all env: (addr environment), cmds: (addr array byte) {
var cmds-stream: (stream byte 0x100)
var cmds-stream-a/esi: (addr stream byte) <- address cmds-stream
write cmds-stream-a, cmds
{
var done?/eax: boolean <- stream-empty? cmds-stream-a
compare done?, 0/false
break-if-!=
var g/eax: grapheme <- read-grapheme cmds-stream-a
process env, g
loop
}
}
fn repl {
{
# prompt
print-string-to-real-screen "> "
# read
var line-storage: (stream byte 0x100)
var line/ecx: (addr stream byte) <- address line-storage
clear-stream line
read-line-from-real-keyboard line
var done?/eax: boolean <- stream-empty? line
compare done?, 0/false
break-if-!=
# parse
var env-storage: environment
var env/esi: (addr environment) <- address env-storage
initialize-environment env
{
var done?/eax: boolean <- stream-empty? line
compare done?, 0/false
break-if-!=
var g/eax: grapheme <- read-grapheme line
process env, g
loop
}
# eval
var stack-storage: value-stack
var stack/edi: (addr value-stack) <- address stack-storage
initialize-value-stack stack, 0x10
evaluate-environment env, stack
# print
var empty?/eax: boolean <- value-stack-empty? stack
{
compare empty?, 0/false
break-if-!=
var result/xmm0: float <- pop-number-from-value-stack stack
print-float-decimal-approximate 0, result, 3
print-string 0, "\n"
print-string 0, "width: "
var width/eax: int <- float-size result, 3
print-int32-decimal 0, width
print-string 0, "\n"
}
#
loop
}
}
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